Range Rover P38 Automatic Acess Mode
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What is it doing? When you switch off and get out of the car, you will hear the tick, tick, tick from the valve block as it self levels (same when you unload a weight out of the boot, when you close the doors the rear will drop down), but it will self level down to whatever height it is currently at. So if you stop and it is at Standard, it will level to that, if you've just come off the Motorway and it is still at Motorway height, it will level down to that. This does assume it is being parked on a flat surface or it will level down to the lowest corner. When you next get into it, it should still be at the height it was left at. If it has settled, it will show the Access light lit with the Standard height light flashing until it rises up to that.
If it is dropping to Access as soon as you get out, I would suspect an iffy height sensor reading low or the calibration bits have been input wrongly so it is levelling down to match the lowest corner.
If it is dropping to Access as soon as you get out, I would suspect an iffy height sensor reading low or the calibration bits have been input wrongly so it is levelling down to match the lowest corner.
This clearly shows the procedure to put the car into access mode manually, there is no automatic access mode on P38. "Einsteigshöhe KANN ... gewählt werden".
I have had mine going to access on startup, but suspect the ECU had got confused or has a bug. I think it's caused when switching ignition off during diagnostics, because it's happened twice to me after doing some work on the system.
The fix is to switch car on, and enter EAS diagnostics. Reset faults if present, and then make sure the diags are exited & cable disconnected before finally switching ignition off.
There are probably other bugs depending on ECU version, so if yours is dropping at switch off, try the procedure above.
The fix is to switch car on, and enter EAS diagnostics. Reset faults if present, and then make sure the diags are exited & cable disconnected before finally switching ignition off.
There are probably other bugs depending on ECU version, so if yours is dropping at switch off, try the procedure above.
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